Possible bad battery? - Epic 4G Q&A, Help & Troubleshooting

I haven't had any problems until recently, my battery has gone from 50% to 25% in roughly an hour. No high tws or awake time, background apps running like crazy. I cannot figure out what's draining it so quick
Sent from the good ole' Epic

Does your post mean that there ARE background apps running like crazy? If so, that's most likely the problem. If not, you're going to have to provide a little more info if you want a helpful answer.

Sorry no it means no background apps
Sent from the good ole' Epic

Related

HTC Desire bad battery, how do i improve it?

HTC Desire bad battery, how do i improve it?
http://myhtcdesire.com/tag/battery-life
trying this now, but any other?
Actually this article from androidcentral is really complete in terms of settings to reduce battery consumption:
androidcentral.com/keeping-your-charge-how-improve-battery-life-your-android-phone
You can also have a look at this one from howtogeek:
howtogeek.com/howto/25319/complete-guide-to-maximizing-your-android-phones-battery-life/
When battery drains a lot it is important to find the cause, in this case tools like systempanel are useful, but keep in mind that it is a good thing to stay away from task killers as explained on lifehacker [what are task killers and why you shouldn't use them]:
lifehacker.com/5650894/android-task-killers-explained-what-they-do-and-why-you-shouldnt-use-them
Hope this will help !
A bad battery is mainly due to either it being faulty or by a stupid amount of usage. Remember that using 7 home screens, live wallpaper, widgets, apps running in the background. All of this counts towards usage. I don't know about calibrating a battery. Some people say it works, some say it doesn't.
I did a little useless experiment the other day where I had my phone at 55% battery and I decided to see how much battery would be used over 24 hours with as little usage as possible. I managed to get 8% of the battery used using 2mA. Hope that puts something into perspective for you.
I tried CPU tuner on the stock ROM and it gave some life to my battery, but I've just flashed a new ROM recently, so hopefully it'll work better.
GoogleJelly said:
A bad battery is mainly due to either it being faulty or by a stupid amount of usage. Remember that using 7 home screens, live wallpaper, widgets, apps running in the background. All of this counts towards usage. I don't know about calibrating a battery. Some people say it works, some say it doesn't.
I did a little useless experiment the other day where I had my phone at 55% battery and I decided to see how much battery would be used over 24 hours with as little usage as possible. I managed to get 8% of the battery used using 2mA. Hope that puts something into perspective for you.
Click to expand...
Click to collapse
Can you clarify "as little usage as possible" to get that 8%? Do you mean like switching off everything, or simply not using the device but keeping all the apps as they were?

[Q] Standby Battery Current Usage

I've looked through the other battery life thread, but I didn't see many people posting easily comparable data so I figured i'd see if my usage was normal compared to others.
I've recently noticed that my standby current (screen off, background data on) hovers consistently in the 50-60mA range. I'm using Battery Monitor Widget from the market to obtain the data. I don't remember if I had this with stock as the battery life was great so I didn't pay much attention.
I'm currently running Skyraider, but have had the same usage issue with AOSP roms (MIUI, CM7) and it doesn't seem to matter what's installed or whether or not the radios are turned on. Standby current never goes lower than about 50mA.
Anybody else using battery monitor widget or something similar care to post your average usage? Listing whether or not you're stock or rooted and what rom you are on would also be helpful.
Thanks.
I'm going to assume that no reply's means everyone is either happy with their battery life or nobody uses a current monitoring widget.
Just wondering why my Inc2 has a ~50mA standby current and a lot of other android phones seem to be able to keep that below 10mA. Some data from another user would help pinpoint if it's just my phone or the Inc2 in general.
My stanby by drain is also pretty high compared to other phones I've tried everything I could think of to track it down with no luck. Maybe its just the inc2
Sent from my ADR6350 using xda premium
I guess it's good to know i'm not the only one. It's not that my battery life is horrible, it's just that it seems like it could be so much better if the standby drain was reduced.
I feel the same way. under battery use my idle percent was 1 on my inspire. on this phone i've seen it as high as ten. no screen off profiles or disabling widgets helps. I have no rogue apps either. it must be my phone
Sent from my Incredible 2 using xda premium

[Q] Understanding My Batter and Its Life.

So im trying to figure out all the detail of my battery and how it works with my phone, i hear all these people getting great battery life and when i follow there setups i still cant match the life there getting even if i leave my phone asleep for hours.
Heres what i got, i downloaded battery monitor widget so i can kinda see whats going on and this is where i get lost.
My usage(mA) is usually bellow 0, which i believe is from undervolting? but it ranges from -466 to 707. The positive mA's come in spikes every few hours. I guess what im asking is this normal? I dont think so, i believe i have a rouge app thats keeping something going.
Can anyone shed some light on what i should be seeing?
I use BMW myself and I just use it for calibration and to see how long my battery has left. Try using juice defender. It turns off your mobile data while your screen is off and saves you quite a bit of battery. At the moment I'm getting close to 22 hours of life. Any other questions just pm me. I've tried a lot of stuff to help battery life.
Sent from my PC36100 using XDA Premium App

[Q] Initial charge?

I hate to be the guy that asks this, but I just want to make sure as from what I understand this is different from phone to phone. From what I understand, Li-Ion batteries, like the GN2's, do not have a memory effect of any kind? And thus all battery calibration rituals and nonsense are entirely pointless for this handset?
The reason I ask is because I wasn't able to charge the device to 100% before use like I was always told to do with new phones. My device was turned on and used until it drained to around 10% at which point it was charged to 100%.
Now, after 2 weeks of use, I feel that my battery is not as good as it should be. I'm barely able to get more that 12 hours. I'd be happy to post some battery graphs in the morning.
One last thing, if I did mess up my battery, or if my battery is messed up or less functional than it should be, would buying a new battery fix all my problems?
Youvare right. All that calibration stuff is nonsense.
I have never charged my phone to full before using and draining the battery and my phone still lasts all day on mostly heavy use.
Could you post your batt stats?
Sent from my GT-N7100 using xda premium
Today I ran my phone with the "lowest" possible settings, that is lowest brightness, CPU power saving, and no haptic feedback. I did not turn off wifi. Doing this I was able to get a surprising 16 hours, although you can see from the graph that I didn't use my phone as much. Attached I have a screenshot of what it's like with the highest possible settings (no power saving stuff, and brightness all the way up, but no GPS). Sorry I don't have a pic of the percentages for the high settings, I never thought to do that.
What concerns me the most is this: even with the lowest settings, I'm only getting 2 hours screen time. (last pic)
What's interesting is that you would think that if I'm getting such poor screen time, there would be something else using a lot of battery, but there isn't. This led me to believe the problem was with the battery. I discovered a pretty big scratch on my screen the other day, and I have some monthly insurance plan from best buy, so I was thinking of just getting a new one. The longer I wait to get a new one, the harder it will be to set up everything again. lol
I noticed that compared to other GN2s, mine seems to wake up a lot when the screen isn't on. The awake periods tend to correspond with drops in battery and also when I have a poor signal. Could this be caused by my phone trying to look for signal and using battery?
Yes poor signal that results in the phone searching for better 3g/2g will drain the batteey faster.
Can you try using it in airplane mode with wifi only for a day and see how that goes?
Also install Better Battery Stats and after a day or so of normal usage check your partial unlocks to see if a rogue app is preventing deep sleep and sucking your juice.
Sent from my Nexus One using xda app-developers app
Yeah it us definitely your signal playing a role. Also you have a lot of wakelocks showing up
Sent from my GT-N7100 using xda premium
Dude you have major wakelocks that eat up 80 % of your battery!
Go to application manager and remove all the apps you don't use.
K, I agree with my week signal using battery. I only have 75 apps on my phone and they're all pretty mainstream, no obscure apps. Right now im in school with 86% battery, I'm turning on airplane mode now. I have noticed however that when I clear my ram it closes like 50-60 processes each time. I am always closing my apps, but 50 seems extremely high. im gonna turn on airplane mode and see how that goes...
thanks!
Yes, you do have poor signal but that's not all. You have terrible wakelocks pal. Install BBS and monitor which apps are the culprit. It's not about 75 apps, even 2 or 3 bad apps, which have hidden advertisement going on could suck your battery flat in no time.
So first thing, install BBS. 2h screen on time is horrible!
Btw- If you're on 3G, try to switch to 2G. Difference will be unthinkable.
Sent from my GT-N7100
Thanks everyone! I'm really loaded with school work, so I don't have a lot of time right now. But long story short, airplane mode saves my battery like crazy. I started school with 86%, turned on airplane mode, and I'm at 79% right now! more later
Is it safe to say I fixed it?
3h screen over 2 days isnt bad right? Perhaps just a bit worse than what others are getting?
Sent from my SCH-I605 using xda app-developers app

Battery draining? Solutions and discussion

First, I apologize to veterans who already know this......but posts about battery problems are all over our forum section.
So.....2 things I personally think work best to solve battery draining issues.
1. GSAM from playstore. It will tell you what apps are draining your battery...the top of the app list will be your main culprits. Then you need to find out why? You can check what apps are waking your phone and for how long. Gsam can tell you a lot if you play around with it and see what it can show you.
2. Cpuspy, also from play store. A simple yet easy way to see if your phone is deep sleeping. Deep sleep should pretty much be your total up time....minus screen on time. Roughly. If it isn't, or you have no deep sleep time.....back to gsam to find out why.
Once you narrow down the app culprits ....then you can search on why.
One last huge thing I personally have done for a long time now....reboot after you unplug from charger. Every single time. This used to be a fix for not getting deep sleep....and I think it still is a good practice.
That's it. 2 apps and you can post your battery draining questions with a lot more info than simply saying..."hey....my battery life sucks."
Cause 9.5 times out of 10.....it has nothing to do with the rom you are using. Usually anyway.
Good luck!!!
Sent from my cellular telephone
A couple other things.
Comparing our total battery time with each other is pointless and meaningless. You can drain your phone from 100 to zero in 3 hours playing certain games, or it can last 30 hours cause you barely touched it. The only reasonable comparison is screen on time. Period. Tho it can alter greatly as well. 2 hours screen time on a 3d game, or 5 hours watching movies. 3 1/2 mostly texting and browsing......but still, its a better way to compare.
Gps is a battery destroyer. Some people leave it on...and certain apps will use it whenever you open them.
Screen brightness is a huge factor.
Task killers usually do more harm than good. Personally I only use greenify, and only for apps I know drain batteries a lot. Like maps. If maps is part of the rom....I convert it to a user app with titanium backup and greenify it. Canada's weather network app is a battery hog. Greenify. Basically anything that tops my list with more than 10 percent in gsam gets greenified. My wife used to use Facebook app....I got her using the browser. The app sucked her battery and data sometimes. No....no notification now, but she's on it a lot....her eyeballs are her notification.
Juice defender....great for very light users....a battery waster for medium to heavy users. Turning wifi and data on and off 200 times a day will kill more battery than it saves. Ever see the amount of times juice defender wakes your phone? LOL. I got as high as 1000 before I deleted it. Gsam told me that!
Sent from my cellular telephone
K....not tooting my own horn....but looking thru threads tells me this really needs a bump!!! LOL
So, bump.
Sent from my cellular telephone
kj2112 said:
2. A simple yet easy way to see if your phone is deep sleeping. Deep sleep should pretty much be your total up time....minus screen on time. Roughly. If it isn't, or you have no deep sleep time.....back to gsam to find out why.
Click to expand...
Click to collapse
Thanks for this. The thread is a great set of tips and much appreciated by a noob like me.
You mentioned TWO apps. One was gsam. I assume the other was related to #2, deep sleeping. But, I didn't see the name of the second app. What was that? Or, did I misunderstand?
Kallen said:
Thanks for this. The thread is a great set of tips and much appreciated by a noob like me.
You mentioned TWO apps. One was gsam. I assume the other was related to #2, deep sleeping. But, I didn't see the name of the second app. What was that? Or, did I misunderstand?
Click to expand...
Click to collapse
You are right! LOL
Fixed. It was cpuspy.
Battery problems? No matter the rom or android version.... >>>> http://forum.xda-developers.com/showthread.php?t=2461864
This is what I do l.. except I then noticed gsam eats battery.
So after the drain findings with gsam I delete it. Then battery is great for me. Good info brotha
Sent from my SGH-M919 using XDA Premium 4 mobile app
Screenshots from today....got to 3 percent then plugged it in.
Gsam resets when you unplug it, but statistics stop when you plug it in....for any doubters.
Yes....6+ hours only on charge, but with almost constant use this morning. Peek at the screen on time tho.
Do you feel the paid version of gsam is worth the buy? Or, is the free version sufficient?
EDIT: Sorry. Should have read further down the GPLAY description. It appears the pro version primarily just adds better tablet support.
Kallen said:
Do you feel the paid version of gsam is worth the buy? Or, is the free version sufficient?
Click to expand...
Click to collapse
Personally the paid version seems to really offer nothing useful....but for less than 2 bucks....maybe a nice gesture to support the dev. Tho really, a few more nice options and I'd pay for sure!
Battery problems? No matter the rom or android version.... >>>> http://forum.xda-developers.com/showthread.php?t=2461864
kj2112 said:
2. Cpuspy, also from play store. A simple yet easy way to see if your phone is deep sleeping. Deep sleep should pretty much be your total up time....minus screen on time. Roughly. If it isn't, or you have no deep sleep time.....back to gsam to find out why.
Click to expand...
Click to collapse
I'm seeing several CPU Spy apps, which one are you recommending?
CPU Spy by Brnadon Volosek
CPU Spy by Klakocar Mario
(similar names)
CPU Spy Plus by Giuseppe Baglio
CPU Spy Reborn by Mirko Dimartino
Rushing said:
This is what I do l.. except I then noticed gsam eats battery.
So after the drain findings with gsam I delete it. Then battery is great for me. Good info brotha
Sent from my SGH-M919 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Definitely a good way to go....keep gsam backup in titanium backup....restore it if you have an issue, then freeze or uninstall it again!
I don't mind the drain and run it 24/7 in case I get the odd issue....like phone process getting stuck in memory after a call. Happens now and then to me....my battery will plummet like 20 percent in a couple hours....I click gsam....see it, force close phone and all is well again. Gotta get thru my 10 hour work day!!! Lol
Battery problems? No matter the rom or android version.... >>>> http://forum.xda-developers.com/showthread.php?t=2461864
Kallen said:
I'm seeing several CPU Spy apps, which one are you recommending?
CPU Spy by Brnadon Volosek
CPU Spy by Klakocar Mario
(similar names)
CPU Spy Plus by Giuseppe Baglio
CPU Spy Reborn by Mirko Dimartino
Click to expand...
Click to collapse
I use the Brandon one. Very simple app....just shows cpu speeds used. Resets upon reboot....or manually. I always reboot after I charge....so it starts fresh.
Battery problems? No matter the rom or android version.... >>>> http://forum.xda-developers.com/showthread.php?t=2461864
To be honest, I gotten quite tired looking at the battery percentage. It always gets me SO MAD when I see it start going down from 100 to 90 in a matter of seconds, but the battery icon looks the same. I know it's a placebo effect to turn off the percentage, but it helps to some degree if you're constantly worried about your battery lasting long, like me!
DJ Scooby Doo said:
To be honest, I gotten quite tired looking at the battery percentage. It always gets me SO MAD when I see it start going down from 100 to 90 in a matter of seconds, but the battery icon looks the same. I know it's a placebo effect to turn off the percentage, but it helps to some degree if you're constantly worried about your battery lasting long, like me!
Click to expand...
Click to collapse
Do the above and you'll know if you're getting normal battery life....or something is going on.
What's your normal screen on time? Average daily use, I'd say 3 to 4 hours is normal. Again....depending what you're up to.
If I didn't rely on my tough bulky case....I'd have and extended battery for sure! Lol
Battery problems? No matter the rom or android version.... >>>> http://forum.xda-developers.com/showthread.php?t=2461864
kj2112 said:
Do the above and you'll know if you're getting normal battery life....or something is going on.
What's your normal screen on time? Average daily use, I'd say 3 to 4 hours is normal. Again....depending what you're up to.
If I didn't rely on my tough bulky case....I'd have and extended battery for sure! Lol
Battery problems? No matter the rom or android version.... >>>> http://forum.xda-developers.com/showthread.php?t=2461864
Click to expand...
Click to collapse
I know I'm going to have to replace the battery. Just waiting on when I get paid, lelel. This battery I assume is 2 years old, and I'm getting me a fresh Anker battery. If any of you guys tried a different battery and it works better than Anker, let me know! I don't need NFC though.
DJ Scooby Doo said:
I know I'm going to have to replace the battery. Just waiting on when I get paid, lelel. This battery I assume is 2 years old, and I'm getting me a fresh Anker battery. If any of you guys tried a different battery and it works better than Anker, let me know! I don't need NFC though.
Click to expand...
Click to collapse
Yeah....wish I could have an extended battery....but I'm in construction. Without my bulky case and hard holster....my phone would have been buried many many times. Lol
Battery problems? No matter the rom or android version.... >>>> http://forum.xda-developers.com/showthread.php?t=2461864
DJ Scooby Doo said:
To be honest, I gotten quite tired looking at the battery percentage. It always gets me SO MAD when I see it start going down from 100 to 90 in a matter of seconds, but the battery icon looks the same. I know it's a placebo effect to turn off the percentage, but it helps to some degree if you're constantly worried about your battery lasting long, like me!
Click to expand...
Click to collapse
I do the samething lol
---------- Post added at 08:21 PM ---------- Previous post was at 08:20 PM ----------
kj2112 said:
First, I apologize to veterans who already know this......but posts about battery problems are all over our forum section.
So.....2 things I personally think work best to solve battery draining issues.
1. GSAM from playstore. It will tell you what apps are draining your battery...the top of the app list will be your main culprits. Then you need to find out why? You can check what apps are waking your phone and for how long. Gsam can tell you a lot if you play around with it and see what it can show you.
2. Cpuspy, also from play store. A simple yet easy way to see if your phone is deep sleeping. Deep sleep should pretty much be your total up time....minus screen on time. Roughly. If it isn't, or you have no deep sleep time.....back to gsam to find out why.
Once you narrow down the app culprits ....then you can search on why.
One last huge thing I personally have done for a long time now....reboot after you unplug from charger. Every single time. This used to be a fix for not getting deep sleep....and I think it still is a good practice.
That's it. 2 apps and you can post your battery draining questions with a lot more info than simply saying..."hey....my battery life sucks."
Cause 9.5 times out of 10.....it has nothing to do with the rom you are using. Usually anyway.
Good luck!!!
Sent from my cellular telephone
Click to expand...
Click to collapse
Good post dude:highfive:
I'm staying on ICS, this battery life is ridiculous. Jelly Bean was draining my battery, but ICS looks solid af. I can't wait to see how it's going to look like with an Anker battery.
Sent from hopefully the last brain transplant using Tapatalk 4
DJ Scooby Doo said:
I'm staying on ICS, this battery life is ridiculous. Jelly Bean was draining my battery, but ICS looks solid af. I can't wait to see how it's going to look like with an Anker battery.
Sent from hopefully the last brain transplant using Tapatalk 4
Click to expand...
Click to collapse
I'm curious how much screen time you get on a full cycle?? I don't remember. On almost any JB version or rom, I usually get 3 to 4 1/2 hours screen time.
______________________________
Sent from my cellular telephone. Battery problems? >>>> http://forum.xda-developers.com/showthread.php?t=2461864
kj2112 said:
I'm curious how much screen time you get on a full cycle?? I don't remember. On almost any JB version or rom, I usually get 3 to 4 1/2 hours screen time.
______________________________
Sent from my cellular telephone. Battery problems? >>>> http://forum.xda-developers.com/showthread.php?t=2461864
Click to expand...
Click to collapse
Honestly, I don't touch my phone much at school. Teachers and Deans are more vigilant this year so less texting for me. :/ On a full cycle, I'd say around an hour and a half or 2 hours. If stock had the ability to use the volume keys as track forward and back, it'd be less. That's what I miss from AOSP.
Sent from hopefully the last brain transplant using Tapatalk 4

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